Wire-cutting mechanism.



No. 805,724. PATENTED NOV. 28, 1905-.

N. s. HARTBR. WIRE CUTTING MECHANISM.

APPLICATION FILED DEC. 30, 1904.

UNITED STATES PATENT o FIoE.

NOAH s. HARTER,'OF CHICAGO, ILLINOIS, ASSIGNOR'OF ONE-HALF To CHARLES R.BARRETT, OF CHICAGO, ILLINOIS.

WIRE-CUTTING MECHANISM.-

Specification of Letters Patent.

Patented Nov. 28, 1905.

Application filed December 80,1904. Serial No. 238,985. I

State ofIllinois, have invented certain new and useful Improvements inWire-Cutting Mechanisms, of which the following is a specification.

The present inventionrelates to wire-coiling machines, and has for itsobject to pro- Vide a simple and eflicient structural formation andcombination of parts whereby the wire as coiled .is automatically cutoil in predetermined lengths in a certain and accurate manner andwithout interference with the normal operation of thecoil-formingmechanism, all as will hereinafter-more fully appear, and bemore particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a plan view, partlydiagrammatic, of the present mechanism. Fig. 2 is a detail perspectiveview of the spreader-plate, by which the desired spread between theconvolutions of the wire coil is attained.

Similar numerals of reference indicate like parts in both views. I

Referring to the drawings, 1 is the central arbor, around which the wireis formed into a coil 2 by the pair of revolving forming heads or disks3 and 4, as usual in the present/class of machines. The said heads arepreferably arranged to revolve upon stationary spindles 5 and 6, havingconfining-nuts 7 and 8 on their outer ends to hold said heads in placein the manner indicated in Fig. 1. i

9 is a spreader-plate secured to one of the spindles aforesaid or to anyother suitable and stationary part of the machine in a non-revoluble yetcircularly-adjustable manner for the purpose hereinafter stated. In theconstruction shown said spreader-plate extends into closely-adjacentrelation to the arbor 1 aforesaid and has a circular and tapering margin10, adapted to fit between the individual convolutions of the wire coil2 as it leaves the forming-heads aforesaid to effect a spreading apartof said convolutions, and the amount of such spread is governed by acircular adjustment of said spreader-plate to bring a thicker or thinnerportion of the tapering margin 10 thelreof into active relation to thesaid wire 001 t 11 is the stationary cutter-blade, and 12 the movablecutter-blade, of a cutting mechanism arranged in the path of the wirecoil 2 as it passes away from the coiling mechanism'before described. 13is a spring encircling the shank of the movable cutter-blade 12 andadapted to draw the same away from the stationarycutter-blade l1aforesaid. I

14 is an armature attached to the rear end of the carrying-shank of themovable cutterblade 12, and 15 is an electromagnet adapted whenenergized to attract said armature and impart a positive forward orcutting movement to said movable cutter-blade to sever the coil of wireat the point betweenthe cutterblades. w

16 isa circuit closer operated by an electromagnet 17 and controlling alocal circuit which embraces the aforesaid electromagnet 15 and abattery 18 or other sourceof electromotive force.

1 9 is a secondary circuit-closer controllinga local circuit whichembraces the operating electromagnet. 17 of the circuit-closer 16 andthe battery 18'or other source of electromotive force.

' It is within the scope of the present invention to omit thecircuit-closer'16 and embrace the cutter-operating electromagnet 15 incircuit with the circuit-c1oser19 in order to operate said electromagnet15 in a direct manner in many uses of the present invention where aheavy electromo'tive force is not required to operate the movable bladeof the cutter mechanism.

In the present improvement the circuitcloser 19 is arranged in the pathof the wire coil 2 as it moves through the cutting mechanism andcomprises a stationary contact member 20 and a movable contact member 21insulated from each other with the. movable member in front of thestationary member,

and so that as the wire coil 2 in its longitudinal travel contacts withthe-movable member 21 it will move the same into contact with the.

stationary member 20 to close the circuit upon theoperating-electromagnet .17- of the circuit closer 16, to in turn closethe circuit on the operatingelectromagnet 15 of the cutting mechanism toforce the movable blade of such cutting mechanism forward and sever theend of the wire coil 2, which extends beyond said cutter-blade;

22 is a carrier for the contact members 20 and 21 aforesaid, which inthe preferred form of the present invention .is secured in an adjustablemanner upon a longitudinal guide rail or way 23, so that thedistance-between the circuit-closer 19 and the cutting mechanism can beadjusted as required in cutting the wire coil 2 into pieces of therequired length. Having thus fullydescribed my said invention, what Iclaim as new, and desire to secure 2. The combination of a mechanismadapted to 'feed a wire coil or the like in a longitudinal direction, afixed cutter and a reciprocating cutter arranged in the path of saidwire coil or the like, an-electromagnet adapted to impart rectilinearmovement to said reciprocating cutter, a circuit-closer arranged in alongitudinally-adjustable manner in the path of the wire coil or thelike passing beyond the cutting mechanism, and a source of electromotiveforce embracing said electromagnetic mechanism and controlled by saidcircuitcloser, substantially as set forth.

3. The combination of a coil-forming mechanism, a fixed cutter and areciprocating cut- I ter arranged in the path of said wire coil or thelike, an electromagnet adapted to impart rectilinear movement to saidreciprocating cutter, a circuit-closer arranged in the path of the wirecoil passing beyond the cutting -mechanism, and a. source ofelectromotive force embracing said electromagnetic mech anism andcontrolled by said circuit-closer, substantially as set forth.

45., The combination of a coil-forming mechanism, a fixed cutter and areciprocating cutter arranged in the path of said wire coil or the like,an electromagnet adapted to impart soavaa rectilinear movement to saidreciprocating cutter, a circuit-closer arranged in a'longitudinally-adjustable mannerin the path of the wire coil passingbeyond the cutting mechanism, and a source of electromotive force.embracing said electromagnetic mechanism and controlled by saidcircuit-closer, substantially as set forth.

5. The combinatlon of a mechanism adapted to feed a wire coil or thelike in a longitudinal direction, a cutting mechanism arranged in thepath of said wi're coil or the like, an electromagnetic mechanismforoperating said cutting mechanism, an electromagnetic circuitcloser, alocal source of electromotive force embracing the electromagneticoperating mechanism of the cutting mechanism and controlled by saidelectromagneticcircuit-closer, a secondary circuit-clo er arranged inthe path of the wire coil passing beyond the cuttingmechanism, and alocal source of electromotive force 'embracingthe operatingelectromagnet of the electromagnetic circuit-closer aforesaid andcontrolled by said secondary circuit-closer, substantially as set forth.

6. The combination of a mechanism adapted to feed a wire coil or thelike in a longitudinal direction, a cutting. mechanism arranged in thepath of said wire coil or the like, anelectromagnetic mechanism foroperating said cutting mechanism, an'electromagnetic circuitcloser, alocal "source of electromotive force embracing the electromagneticoperating mechanism of the cutting mechanism and controlled by saidelectromagnetic circuit-closer, a sacondary circuitcloser' arranged in alongitudinally-adjustablemanner in the path of the wire coil passingbeyond the cutting mechanism, and a local source ofelectromotive forceembracing the operating-electromagnet -of the electromagneticcircuit-closer aforesaid and controlled by said secondary circuitcloser,substantially as set forth.

Signed at Chicago, llllinois, this 21st day of December, 1904.

1 NOAH'S. HARTER. Witnesses:

. ROBERT BURNS, M. H. Homaas.

